globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069230
论文题名:
A comparison between large-scale irregularities and scintillations in the polar ionosphere
作者: Wang Y.; Zhang Q.-H.; Jayachandran P.T.; Lockwood M.; Zhang S.-R.; Moen J.; Xing Z.-Y.; Ma Y.-Z.; Lester M.
刊名: Geophysical Research Letters
ISSN: 0094-9561
EISSN: 1944-9292
出版年: 2016
卷: 43, 期:10
起始页码: 4790
结束页码: 4798
语种: 英语
英文关键词: GPS TEC ; ionospheric irregularities ; ionospheric scintillations ; polar ionosphere ; SuperDARN
Scopus关键词: Geomagnetism ; Ionosphere ; Ionospheric measurement ; Storms ; GPS TEC ; Ionospheric irregularities ; Ionospheric scintillation ; Polar ionospheres ; SuperDARN ; Scintillation ; amplitude ; comparative study ; electron ; geomagnetism ; GPS ; ionosphere ; polar region ; radar
英文摘要: A comparison tool has been developed by mapping the global GPS total electron content (TEC) and large coverage of ionospheric scintillations together on the geomagnetic latitude/magnetic local time coordinates. Using this tool, a comparison between large-scale ionospheric irregularities and scintillations is pursued during a geomagnetic storm. Irregularities, such as storm enhanced density, middle-latitude trough, and polar cap patches, are clearly identified from the TEC maps. At the edges of these irregularities, clear scintillations appeared but their behaviors were different. Phase scintillations (σφ) were almost always larger than amplitude scintillations (S4) at the edges of these irregularities, associated with bursty flows or flow reversals with large density gradients. An unexpected scintillation feature appeared inside the modeled auroral oval where S4 were much larger than σφ, most likely caused by particle precipitations around the exiting polar cap patches. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971280172&doi=10.1002%2f2016GL069230&partnerID=40&md5=531bb66d84175ba7ec5fee4f0e764227
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10524
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, China

Recommended Citation:
Wang Y.,Zhang Q.-H.,Jayachandran P.T.,et al. A comparison between large-scale irregularities and scintillations in the polar ionosphere[J]. Geophysical Research Letters,2016-01-01,43(10).
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